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Scale: What are the key temporal and spatial drivers in the Russian River Watershed Watershed Hydrology  Hydrology is a key controller of biogeochemical processing in a watershed.  Dominate transport and distribution mechanisms for constituents of concern  River discharge (controls the supply and form of pollutants during low-flow and high flow conditions)  Resuspend, remobilize, and settle pollutants in the Russian River and ponds  In stream flow augmentation: reservoirs and levees  Detention of fines (Hg) and subsequent release  Reduced connectivity between the floodplain and the river system Science, Service, Stewardship

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Summary  Understanding water quality responses and linkage between local internal process and external drivers at the watershed scale remains important to the success of the Hanson Pond Restoration Project.  A ﬁrst step is to collect high quality data that captures the range of variability in anthropogenic and natural drivers over various spatial and temporal scales.  Determine how these scales vary along physical, chemical and environmental gradients. Science, Service, Stewardship